CAS Number Index

A CAS Registry Number,also referred to as CASRN or CAS Number, is a unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), including organic and inorganiccompounds, minerals, isotopes, alloys and nonstructurable materials (UVCBs, of unknown, variable composition, or biological origin).The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 144 million unique organic and inorganic substances and 67 million protein and DNA sequences,plus additional information about each substance. It is updated with around 15,000 additional new substances daily.（information coming from wikipedia.org)

Name CAS Number
t-Butyl 4-(3-carboxyquinoxalin-2-yl)-1,4-diazepane-1-carboxylate 1858256-84-4
t-Butyl 4-[3-(ethoxycarbonyl)quinoxalin-2-yl]-1,4-diazepane-1-carboxylate 1858255-49-8
Methyl 2,3,5-trifluoro-4-piperidin-1-ylbenzoate 1858249-59-8
(+/-)-(1S*,2S*,5R*)-3-(tert-butoxycarbonyl)-6,6-dichloro-3-azabicyclo[3.1.0]hexane-2-carboxylic acid 1932796-74-1
(3R,7AS)-6-Methylidene-3-(trichloromethyl)-tetrahydropyrrolo[1,2-C][1,3]oxazol-1-one 1932627-86-5
Z97X8R6Zxd 1354716-94-1
2-(2-(2-(3-Aminophenoxyl)ethoxy)ethoxy)ethanol 263770-42-9
N-(1-((2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methyl)-1H-pyrazol-4-yl)-5-(1,2-dithiolan-3-yl)pentanamide 1705877-03-7
3-chloro-N-(2-(1,5-dimethyl-1H-pyrazol-3-yl)ethyl)benzamide 2034260-61-0
Methyl (R)-4-aminocyclopent-1-ene-1-carboxylate 2088255-06-3
[1-methyl-5-(pyridin-2-yl)-1H-1,2,3-triazol-4-yl]methanamine 1502669-44-4
rac-[(1R,3R)-2,2-dimethyl-3-(3-methylphenyl)cyclopropyl]methanamine 2227768-86-5
rac-[(1R,3R)-2,2-dimethyl-3-(2-methylphenyl)cyclopropyl]methanamine 2227786-88-9
rac-[(1R,3R)-2,2-dimethyl-3-(4-methylphenyl)cyclopropyl]methanamine 2227880-90-0
Tert-butyl 5-(cyclopropylamino)-4,5,6,7-tetrahydro-2H-indazole-2-carboxylate 1431311-68-0
4-(3-Chloro-5-fluoro-4-pyridinyl)benzoic acid ethyl ester 1431307-96-8
(2R)-pent-4-yn-2-amine 2648851-85-6
1,1-Dimethylethyl [cis-4-(aminomethyl)-4-hydroxycyclohexyl]carbamate 1223579-92-7
7-Methoxy-1-methyl-1H-indole-4-carboxylic acid methyl ester 1431308-01-8
1-(2-Hydroxy-2-methylpropyl)-1H-indole-4-carboxylic acid methyl ester 1431308-00-7
Benzyl cyclopropyl(4,5,6,7-tetrahydro-1H-indazol-5-yl)carbamate 1431308-11-0
1-[2-(Ethenyloxy)ethyl]-1H-indazole-4-carboxylic acid methyl ester 1431310-26-7
3-Bromo-6-[[(1,1-dimethylethyl)diphenylsilyl]oxy]benzo[b]thiophene 1431308-27-8
N-cyclopropyl-4-isopropoxy-N-(1,4-dioxaspiro[4.5]decan-8-yl)benzamide 1431311-66-8
Benzyl 6,7-dihydrospiro[indazole-5,2'-[1,3]dioxolane]-2(4h)-carboxylate 1431308-15-4
1-(8-Hydroxy-1,4-dioxaspiro[4.5]dec-7-EN-7-YL)ethan-1-one 1431311-76-0
Methyl 1-(2-cyclopropoxyethyl)-1H-indazole-4-carboxylate 1431308-26-7
(1R,3R)-2,2-Dimethyl-3-pyridin-4-ylcyclopropane-1-carboxylic acid 2227725-59-7
rac-(1R,3R)-2,2-dimethyl-3-(pyridin-2-yl)cyclopropane-1-carboxylic acid 2227802-53-9
4-(3,5-Dichloro-4-pyridinyl)benzoic acid methyl ester 1456869-52-5
rac-(1R,3R)-2,2-dimethyl-3-(pyridin-3-yl)cyclopropane-1-carboxylic acid 2227914-68-1
Methyl 1-(2-(2-oxopyrrolidin-1-yl)ethyl)-1H-indole-4-carboxylate 1431307-98-0
Benzyl cyclopropyl(2-methoxy-5,6,7,8-tetrahydroquinazolin-6-yl)carbamate 1431308-35-8
Tert-butyl 4-(3-(4-nitrophenyl)propyl)piperazine-1-carboxylate 1432126-02-7
(2S)-5-(4-Methoxyphenyl)pentan-2-amine 2248184-04-3
(S)-7-Methoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid 190579-84-1
rac-(1R,3R)-2,2-dimethyl-3-(5-methylfuran-2-yl)cyclopropane-1-carboxylic acid 2227852-99-3
(2S)-2-amino-3-(3-chloro-2-fluorophenyl)propanoic acid 1039622-53-1
(R)-2-Amino-3-(2-chloro-5-(trifluoromethyl)phenyl)propanoic acid 1270265-15-0
(2S)-2-Amino-3-(6-chloro-2-fluoro-3-methylphenyl)propanoic acid 1269976-88-6
2-Fluoro-5-methyl-D-phenylalanine 1212900-32-7
rac-[(1R,3R)-2,2-dimethyl-3-(5-methylthiophen-2-yl)cyclopropyl]methanamine 2227891-80-5
rac-(1R,3R)-2,2-dimethyl-3-(thiophen-2-yl)cyclopropane-1-carboxylic acid 2227866-14-8
rac-[(1R,3R)-2,2-dimethyl-3-(2-methyl-1,3-thiazol-5-yl)cyclopropyl]methanamine 2227836-04-4
2-(2,4,5-Tribromo-1h-imidazol-1-yl)-N-isopropylacetamide 1431952-42-9
rac-(1R,3R)-2,2-dimethyl-3-(1,3-thiazol-5-yl)cyclopropane-1-carboxylic acid 2227697-23-4
3-Methoxy-1-[(5-methylthiophen-2-yl)methyl]-1-(propan-2-yl)urea 1798730-79-6
Benzenemethanol, I+/--[(1S)-1-amino-2-methylpropyl]-2-methyl-, (I+/-S)- 1821727-21-2
1-[(4-Aminophenyl)sulfonyl]-D-proline methyl ester 2363762-78-9
tert-butyl 4-[(3R)-piperidin-3-yl]piperazine-1-carboxylate 2349624-01-5

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